I spent some time searching these forums, have found discussions that try to address bits and pieces, but I haven’t seen this asked directly. So here goes. Before I had any hearing loss (you know, back in the olden days :)), my brain was able to filter out a voice in a noisy restaurant, ignore whirring fans and noises in a car. I could listen to music or talk one on one with a friend. Virtually all of that capability comes from my brain, not my cochlea. So, why do I suddenly need a hearing aid with multiple programs, noise cancellation algorithms and all the rest? None of which seem to work particularly well (except maybe speech in a quiet environment), and make for a very complex fitting process. Why wouldn’t a straight forward, 4 band, high fidelity, programmable amplifier be the best solution of all? Compensate for the frequency-based losses, to get a “clean” audio signal to the brain, and let the brain continue to do the processing it’s evolved for millions of years to do? Isn’t that essentially what analog hearing aids do? Is it all just marketing, or is there a real benefit to all these added features. Thanks!